Sampling device and processing system with same

Abstract

The invention discloses a sampling device and a processing system with the sampling device, the sampling device comprises a sampling pipe, a sampling block and a driving piece, one end of the sampling pipe is a sampling port, and spaced sample outlets are formed in the pipe wall of the sampling pipe; the sampling block is slidably arranged in the sampling pipe, a sample reserving cavity is formed in the sampling block, a top inlet and a bottom outlet are respectively formed in the top and the bottom of the sampling block by the sample reserving cavity, and the sampling block is provided with a first position, a second position and a third position in the sampling pipe; the driving piece is connected with the sampling block so as to drive the sampling block to slide between a first position and a third position; at the first position, the sampling block is positioned in the sampling pipe, and the bottom outlet is communicated with the sample outlet; at the third position, part of the sampling block extends out of the sampling port, at least part of the top inlet is located outside the sampling pipe, and the bottom outlet is located in the sampling pipe; the second position is located between the first position and the third position, and at the second position, the top inlet and the bottom outlet are sealed by the pipe wall of the sampling pipe. Quantitative sampling can be achieved, and the sampling error is reduced.

Description

Technical Field

[0001] This invention relates to a sampling device and a processing system having the same. Background Technology

[0002] Rice mills are currently undergoing rapid digital transformation, and their processing equipment is becoming increasingly intelligent. In the process of promoting this digital transformation, it is necessary to sample and analyze data from each processing stage.

[0003] In related technologies, the sampling device is provided with a rice-taking port fixed inside the rice-taking tube. Rice grains pass through the rice-taking port and can be contained inside the rice-taking tube. The rice grains then pass through the rice-exit port on the rice-taking tube, which is spaced apart from the rice-taking port.

[0004] However, in existing sampling devices, the number of sampled grains fluctuates greatly, ranging from several thousand to tens of thousands of rice grains.

[0005] Therefore, there is room for improvement. Summary of the Invention

[0006] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a sampling device that can quantitatively sample a sample passing through the sampling device.

[0007] A sampling device according to an embodiment of the present invention includes: a sampling tube, one end of which is a sampling port, and the tube wall of the sampling tube is provided with spaced-apart sample outlets; a sampling block, which is slidably disposed inside the sampling tube, and the sampling block is provided with a sample retention cavity, the sample retention cavity forming a top inlet and a bottom outlet at the top and bottom of the sampling block, respectively, and the sampling block having a first position, a second position, and a third position inside the sampling tube; a driving member connected to the sampling block to drive the sampling block to slide between the first position and the third position; wherein, in the first position, the sampling block is located inside the sampling tube, and the bottom outlet communicates with the sample outlets; in the third position, a portion of the sampling block extends out of the sampling port, at least a portion of the top inlet is located outside the sampling tube, and the bottom outlet is located inside the sampling tube; the second position is located between the first position and the third position, and in the second position, both the top inlet and the bottom outlet are closed by the tube wall of the sampling tube.

[0008] According to the sampling device of the present invention, the driving member can drive the sampling block to slide relative to the sampling tube. When the sampling block is driven to the third position, the sample enters the top inlet of the retention cavity, and the sample gradually fills the retention cavity. When the sampling block is driven to the second position, the retention cavity is closed, and the sample in the retention cavity neither increases nor decreases. When the sampling block is driven to the third position, no more sample can enter the top inlet, and the sample in the retention cavity can be completely removed from the bottom outlet. Thus, the sampling device can perform quantitative sampling, and the amount of sample in the retention cavity remains unchanged during the sliding process of the sampling device in the second position, reducing errors.

[0009] In some embodiments, the sampling block is provided with a leakage channel, which is located on the side of the sample retention chamber adjacent to the sampling port. The upper end of the leakage channel is connected to the top inlet, and the lower end of the leakage channel passes through the sampling block.

[0010] In some embodiments, the point where the inner wall of the sample leakage channel meets the inner wall of the sample retention chamber is lower than the upper surface of the sampling block.

[0011] In some embodiments, a first protrusion is provided on one side of the sampling block adjacent to the sampling port, and the leakage channel is located on the first protrusion.

[0012] In some embodiments, at least a portion of the sample retention cavity has a cross-sectional area that gradually decreases downwards.

[0013] In some embodiments, the inner wall surface of the sample retention chamber includes: an inclined surface adjacent to the sampling port; and a vertical surface opposite to the inclined surface, wherein the distance between the inclined surface and the vertical surface gradually decreases downward.

[0014] In some embodiments, a second protrusion is provided on the side of the sampling block away from the sampling port. The bottom surface of the second protrusion is flush with the bottom surface of the sampling block. The surface of the second protrusion away from the sampling port is an inclined pushing surface, and the distance between the pushing surface and the sampling port gradually increases downward.

[0015] In some embodiments, the driving component is a cylinder connected to the end of the sampling tube away from the sampling port, and the cylinder rod is connected to the sampling block.

[0016] In some embodiments, the sampling device further includes a floating connector located inside the sampling tube and connected to the side of the sampling block away from the sampling port, and the end of the cylinder rod is connected to the floating connector.

[0017] The processing system according to an embodiment of the present invention includes a sampling device and a processing equipment according to an embodiment of the present invention. The processing equipment is at least one of a color sorter, a rice huller, a polisher, a rice milling machine, and a white rice grading sieve. The sampling device is connected to the discharge component of the at least one of the processing equipment and is used to sample the discharge of the at least one of the processing equipment.

[0018] According to the processing system of the present invention, by using the sampling device described above, samples can be collected quantitatively, and damage to samples and materials can be reduced, thereby improving the accuracy of judgment and analysis.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of the processing system in some embodiments;

[0022] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0023] Figure 3 These are schematic diagrams of the overall structure of the sampling device in some embodiments;

[0024] Figure 4 This is a schematic diagram of a sampling block at a first position in some embodiments;

[0025] Figure 5 This is a schematic diagram of a sampling block at a second position in some embodiments;

[0026] Figure 6 This is a schematic diagram of the sampling block in the third position in some embodiments;

[0027] Figure 7 These are partial enlarged views of the sampling apparatus (excluding the sample) in some embodiments;

[0028] Figure 8 These are partial enlarged views of the sampling apparatus (including samples) in some embodiments;

[0029] Figure 9 These are schematic diagrams of the sampling blocks in some embodiments;

[0030] Figure 10 These are front views of the sample dispensing apparatus in some embodiments;

[0031] Figure 11These are side views of the sample dispensing apparatus of some embodiments;

[0032] Figure 12 These are cross-sectional views of the sample dispensing apparatus in some embodiments, viewed from the front.

[0033] Figure 13 These are cross-sectional views of the sample dispensing apparatus in some embodiments in the axial direction;

[0034] Figure 14 yes Figure 13 A magnified view of a portion of the image;

[0035] Figure 15 These are cross-sectional views of the sample dispensing apparatus in some embodiments, viewed from the side.

[0036] Figure 16 These are perspective views of multiple material distribution structures in some embodiments;

[0037] Figure 17 These are top views of the sample separation apparatus in some embodiments.

[0038] Figure label:

[0039] Processing system 100

[0040] Processing equipment 1, chute 101,

[0041] Sampling device 2

[0042] Sampling tube 20

[0043] Sampling port 201, sample outlet 202, tube wall 203

[0044] Sampling block 21

[0045] Sample retention chamber 210, top inlet 2101, bottom outlet 2102, first protrusion 211, sample leakage channel 2110, second protrusion 212, push surface 2121, sampling block connection hole 213, inclined surface 214, vertical surface 215.

[0046] Drive sampling device 22, cylinder 221, floating joint 222, cylinder rod 223

[0047] First position 2a, second position 2b, third position 2c;

[0048] First direction D1; Material 3e, Sample 3f,

[0049] Sampling device 3

[0050] Shell 31, Inlet 311, Overflow outlet 312, Sample dispensing outlet 313, Viewing window 314

[0051] Bulk material plate 32,

[0052] Material distribution structure 33

[0053] First material plate 331, receiving plate area G1, material leakage plate area G2, first sub-plate 3310, second material plate 332, second sub-plate 3320, connecting lines Q1 and Q2, third material plate 333, fourth material plate 334, partition plate 335.

[0054] First feed inlet 3301, Second feed inlet 3302

[0055] Analyzer 5. Detailed Implementation

[0056] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0057] In the description of this invention, it should be understood that the terms "center," "lateral," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0058] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0059] In existing technologies, many processing systems 100 require random sampling of materials 3e. Taking rice production as an example, rice mills are rapidly undergoing digital transformation, and their processing equipment 1 is becoming increasingly intelligent. During this digital transformation, it is necessary to sample and analyze various processing stages. This process can be achieved using a sampling device 2 to take samples, and then analyzing the extracted rice samples 3f. Or, as... Figure 1 and Figure 2 As shown, this process can also first use sampling device 2 to take a sample from the material 3e processed by processing equipment 1, and then divide the obtained rice sample 3f into samples by sampling device 3, and then analyze the separated rice sample 3f.

[0060] The sampling device 2 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0061] like Figures 3-8 As shown, the sampling device 2 according to an embodiment of the present invention includes a sampling tube 20, a sampling block 21, and a driving sampling device 22.

[0062] like Figure 3 and Figure 8 As shown, the sampling tube 20 is provided with a sampling port 201 and a sampling outlet 202. One end of the sampling tube 20 is the sampling port 201, and the sampling outlet 202 is provided on the tube wall 203 of the sampling tube 20. The sampling port 201 and the sampling outlet 202 are arranged alternately on the sampling tube 20. With one end of the sampling tube 20 facing the sampling position, a portion of the material 3e can be taken from the material 3e at the sampling position as a sample 3f. Then, the sample 3f is moved to the sampling outlet 202 and discharged from the sampling tube 20. For example, in... Figure 1 and Figure 2 In the example, the processing device 1 of the processing system 100 is connected to a chute 101, and the material 3e processed by the processing device 1 is discharged through the chute 101. The sampling tube 20 is connected to the chute 101 through the sampling port 201, and the chute 101 constitutes the aforementioned sampling location. Of course, the sampling location of the sampling tube 20 in this application is not limited to the chute 101, but can also be a storage silo, etc. For the sake of simplicity, the following description will use the example of sampling with the sampling tube 20 connected to the chute 101.

[0063] like Figure 3 As shown, the sampling block 21 is disposed inside the sampling tube 20, and the sampling block 21 can slide relative to the sampling tube 20. The sampling block 21 is provided with a sample retention cavity 210, which can accommodate the sample 3f. The sample retention cavity 210 has a top inlet 2101 and a bottom outlet 2102. The top inlet 2101 is located at the top of the sampling block 21, and the bottom outlet 2102 is located at the bottom of the sampling block 21. The sample 3f can enter the sample retention cavity 210 through the top inlet 2101, and the sample 3f can be removed from the sample retention cavity 210 through the bottom outlet 2102.

[0064] like Figures 4-6 As shown, the sampling block 21 has a first position 2a, a second position 2b, and a third position 2c within the sampling tube 20. The driving sampling device 22 is connected to the sampling block 21, and the driving sampling device 22 can drive the sampling block 21 to slide between the first position 2a and the third position 2c.

[0065] Among them, such as Figure 4 As shown, at the first position 2a, the sampling block 21 is located inside the sampling tube 20, and the bottom outlet 2102 is connected to the sample outlet 202, so that the sample 3f in the sampling block 21 can be discharged from the bottom outlet 2102 through the sample outlet 202.

[0066] like Figure 6 As shown, in the third position 2c, a portion of the sampling block 21 extends beyond the sampling port 201, at least a portion of the top inlet 2101 is located outside the sampling tube 20, and the bottom outlet 2102 is located inside the sampling tube 20. Thus, in the third position 2c, the top inlet 2101 of the sampling block 21 is open, allowing the sample 3f to enter the retention chamber 210 through the top inlet 2101 and gradually fill the retention chamber 210. At this time, since the bottom outlet 2102 is located inside the sampling tube 20 and is sealed by the tube wall 203 of the sampling tube 20, in the third position 2c, the sample 3f is in a state of only entering and not exiting on the sampling block 21.

[0067] like Figure 5 As shown, the second position 2b is located between the first position 2a and the third position 2c. At the second position 2b, the top inlet 2101 is closed by the wall 203 of the sampling tube 20, and the bottom outlet 2102 is also closed by the wall 203 of the sampling tube 20. Therefore, at the second position 2b, the sample retention chamber 210 is closed, and the sample 3f is retained in the sample retention chamber 210. The second position 2b can also be understood from another perspective, that is, in... Figure 5 In the indicated direction, the sampling tube 20 extends in the left-right direction, and the sampling block 21 slides in the left-right direction. The distance between the left side of the top inlet 2101 and the right side of the bottom outlet 2102 is less than or equal to the left-right distance between the sampling port 201 and the outlet 202. Therefore, when the sampling block 21 moves to the second position 2b, both the top inlet 2101 and the bottom outlet 2102 can be sealed by the tube wall 203 of the sampling tube 20. This arrangement ensures that when the sampling block 21 reaches the second position 2b, the sample fills the retention chamber 210, preventing further entry or exit. Only after the sampling block 21 moves towards the first position 2a can the sample be discharged from the outlet 202. This ensures that the amount of sample taken in a single operation is exactly equal to the capacity of the retention chamber 210, achieving the purpose of quantitative sampling. If the distance between the left side of the top inlet 2101 and the right side of the bottom outlet 2102 is greater than or equal to the left-right distance between the sampling port 201 and the outlet 202, then part of the top inlet 2101 will be located in the chute 101, while part of the bottom outlet 2102 will be located in the outlet 202. This will result in samples entering the retention chamber 210 and simultaneously flowing out of the retention chamber 210, causing the sample volume to exceed the volume of the retention chamber 210, making quantitative sampling impossible.

[0068] The sampling device 2 operates as follows: Each time the sampling device 2 takes a sample, it drives the sampling block 21 to the third position 2c and holds it there for a certain period of time until the sample 3f fills the retention cavity 210. After confirming that the sample 3f has filled the retention cavity 210, the sampling device 22 drives the sampling block 21 to the first position 2a, causing the bottom outlet 2102 to open towards the sample outlet 202 for a certain period of time, so that the sample 3f is completely removed from the retention cavity 210.

[0069] Before the sampling tube 20 slides from the third position 2c to the first position 2a after being filled with material 3e, it needs to pass through the second position 2b. For example... Figure 9 As shown, during the process of reaching the second position 2b, the bottom outlet 2102 is closed by the wall 203 of the sampling tube 20, while the sampling block 21 gradually slides into the sampling tube 20, gradually closing the top inlet 2101. Furthermore, during the sliding process of the sampling block 21 into the sampling tube 20, any excess material 3e taken by the sampling block 21 is gradually pushed away by the inner wall of the chute 101. Once the sampling block 21 reaches the second position 2b, the sample 3f in the retention chamber 210 cannot be increased or decreased; the amount of sample 3f taken by the sampling block 21 in a single operation is exactly the volume of the retention chamber 210. Therefore, the sampling device 2 in this application can achieve quantitative sampling, avoiding the situation where the bottom outlet 2102 simultaneously discharges material when the top inlet 2101 is feeding, and preventing the sampling amount taken by the sampling device 2 in a single operation from exceeding the volume of the retention chamber 210.

[0070] According to the sampling device 2 of the present invention, the driving sampling device 22 can drive the sampling block 21 to slide relative to the sampling tube 20. When the sampling block 21 is driven to the third position 2c, the sample 3f enters the top inlet 2101 of the retention cavity 210, and the sample 3f gradually fills the retention cavity 210. When the sampling block 21 is driven to the second position 2b, the retention cavity 210 is closed, so that the single sampling amount of the sampling device 2 is exactly the volume of the retention cavity 210. When the sampling block 21 is driven to the third position 2c, the top inlet 2101 is closed, and the sample 3f in the retention cavity 210 can be completely removed from the bottom outlet 2102. Thus, the sampling device 2 can perform quantitative sampling.

[0071] like Figure 3 As shown, in some embodiments, the sampling block 21 is provided with a leakage channel 2110, which is located on one side of the sample retention chamber 210, adjacent to the sampling port 201. The upper end of the leakage channel 2110 is connected to the top inlet 2101, and the lower end of the leakage channel 2110 penetrates the sampling block 21. Thus, excess sample 3f accumulated at the top inlet 2101 can flow into the leakage channel 2110 through its upper end and exit the sampling block 21 through its lower end.

[0072] By setting up the leakage channel 2110, when the sampling block 21 is about to pass the second position 2b, the excess sample 3f is pushed into the leakage channel 2110 by the inner wall of the chute 101. Under the action of gravity, the excess sample 3f can leak from the leakage channel 2110 into the chute 101 in time, reducing the possibility of the sample 3f getting stuck between the sampling block 21 and the sampling tube 20, reducing the chance of the sample 3f being crushed, and also improving the smoothness of the sampling block 21 in the sampling tube 20.

[0073] like Figure 7 and Figure 8 As shown, further, at the junction of the inner wall of the sample leakage channel 2110 and the inner wall of the sample retention cavity 210, i.e. Figure 7 The point p mentioned in the text is below the upper surface of sampling block 21.

[0074] Here is a reference Figure 9 , Figure 9 The diagram shows that when the sampling block 21 slides to the right, the excess material 3e on the upper surface of the sampling block 21 is scraped flat by the inner wall of the chute 101. Figure 9 As shown, since the sample leakage channel 2110 is located on the left side of the sample retention chamber 210, the point where the right wall of the sample leakage channel 2110 meets the left wall of the sample retention chamber 210 is point p. The excess material 3e that is scraped off is scraped to the left relative to the sampling block 21, and it can leak out from the sample leakage channel 2110 when it encounters the sample leakage channel 2110 on the left side. Figure 9 The diagram only shows the location where excess material 3e leaks out, but in reality, due to gravity, material 3e will quickly fall from the leakage channel 2110, so material 3e will not be retained in the leakage channel 2110. In other words, the leakage channel 2110 is relatively empty when the sample retention chamber 210 is full. When material 3e is scraped to the left above the top inlet 2101, since the contact point p is lower than the upper surface of the sample retention block 21, the scraped material 3e will not remain too much on the upper surface of the sample retention block 21 and can enter the leakage channel 2110 from the contact point p. This reduces the chance of material 3e being trapped between the upper surface of the sampling block 21 and the tube wall 203 during the scraping process, reduces the chance of material 3e being crushed, and also improves the smoothness of the sliding of the sampling block 21.

[0075] like Figure 3 and Figure 8 As shown, in some embodiments, the sampling block 21 is provided with a first protrusion 211, which is located adjacent to the sampling port 201, and the leakage channel 2110 is located on the first protrusion 211. When there is a large amount of excess sample 3f on the sampling block 21, the sample 3f can be pushed to the first protrusion 211 by the sampling tube 20 and leak out from the leakage channel 2110. The provision of the first protrusion 211 can shorten the height of the leakage channel 2110 and reduce the probability of material 3e being stuck and blocked in the leakage channel 2110.

[0076] The first protrusion 211 is provided and the sampling channel 2110 is located on the first protrusion 211. The bottom wall of the first protrusion 211 does not need to contact the sampling tube 20, which makes the discharge path of the sampling channel 2110 short and the discharge of excess material 3e from the sample retention chamber 210 very fast. Moreover, the contact area between the first protrusion 211 and the sampling tube 20 is small, so there will be no excessive frictional resistance during the sliding of the sampling block 21.

[0077] Furthermore, the upper surface of the first protrusion 211 is flush with the upper surface of the sampling block 21 as a whole. This allows the upper end of the sample leakage channel 2110 to be positioned close to, or even flush with, the upper end of the sample retention cavity 210 when the sample leakage channel 2110 is set on the first protrusion 211. Alternatively, as... Figure 7 and Figure 8 As shown, the upper end of the sample leakage channel 2110 can be connected to the upper end of the sample retention chamber 210 (i.e., Figure 7 (as indicated by p in the text), and the connection point is located relatively high on the sample retention cavity 210, so that the excess material 3e on the upper surface of the sampling block 21 can be discharged through the leakage channel 2110 very quickly, without affecting the loading amount of the sample retention cavity 210.

[0078] In some embodiments, such as Figure 7 As shown, the sample leakage channel 2110 is a vertical straight channel, which simplifies the processing difficulty of the sample leakage channel 2110.

[0079] Of course, the sampling channel 2110 can also be set as a non-vertical straight channel in this application, which can prevent material 3e from jumping into the sampling channel 2110 during the sampling process. The sampling channel 2110 can be an inclined channel that is inclined relative to both the vertical and horizontal directions, or the sampling channel 2110 can be an arc-shaped channel, for example, in the downward direction, the horizontal distance between the sampling channel 2110 and point p gradually increases. Alternatively, the sampling channel 2110 can be at least two spiral channels that extend downward.

[0080] In some specific embodiments, the sampling channel 2110 is relative to Figure 7 The sampling block 21 is tilted in both the vertical and horizontal directions (not shown in the figure), with point p below the upper surface of the sampling block 21. This prevents material from entering the sample retention chamber 210 through the leakage channel 2110 during the sampling process, especially when the sampling block 21 is in the first position 2a, thus avoiding skipping point P. The bottom of the leakage channel 2110 can face left or right relative to the top, with right being preferred.

[0081] like Figure 7As shown, in some embodiments, at least a portion of the sample retention cavity 210 has a cross-sectional area that gradually decreases downwards. This arrangement makes the sample retention cavity 210 generally funnel-shaped, meaning that at least a portion of the inner wall of the sample retention cavity 210 is inclined relative to both the vertical and horizontal directions. This facilitates the filling of the sample retention cavity 210 by the sample 3f during downward deposition, thereby further ensuring that the amount of sample 3f collected by the sampling device 2 in a single sampling is constant.

[0082] like Figure 7 As shown, for example, the inner wall of the sample retention chamber 210 includes an inclined surface 214 and a vertical surface 215. The inclined surface 214 is adjacent to the sampling port 201, and the vertical surface 215 is opposite to the inclined surface 214. The distance between the inclined surface 214 and the vertical surface 215 gradually decreases downwards. This arrangement helps to further improve the density of the sample 3f contained in the sample retention chamber 210 after sampling, thereby improving the accuracy of quantitative sampling.

[0083] Specifically, 7 and Figure 9 In the example shown, when the sampling block 21 has collected enough material 3e, it will slide to the right under the drive of the sampling device 22, and the excess material 3e will be scraped off to the left by the inner wall of the chute 101. That is to say, during the process of the sampling block 21 sliding to the right, the inner wall of the chute 101 exerts a scraping effect on the material 3e to the left, causing the material 3e to be squeezed to the left.

[0084] Since the left wall of the sample retention cavity 210 is inclined 214, this makes the material 3e in the sample retention cavity 210 more compact, reduces the chance of the material 3e being scraped away and resulting in too little sample in the sample retention cavity 210, and is more conducive to the discharge of the material in the sample retention cavity 210 at the first position 2a.

[0085] Meanwhile, a solid, triangular prism-like structure is formed between the inclined surface 214 and the left end face below the first protrusion 211 on the sampling block 21, making the spatial arrangement of the sampling block 21 more reasonable. After sampling is completed, the sampling block 21 does not exceed the sampling chute 101, and does not affect the running trajectory and speed of the material 3e in the chute 101. In addition, processing is also more convenient.

[0086] In addition, the inner wall of the sample retention chamber 210 is designed with one side being an inclined surface 214 and the other side being a vertical surface 215, so that the length of the top inlet 2101 is much greater than the length of the bottom outlet 2102. In this way, when the sampling block 21 reaches the third position 2c, the top inlet 2101 can be kept open to receive material, while the bottom outlet 2102 remains closed inside the sampling tube 20.

[0087] Of course, the solution proposed in this application is not limited to this. For example, the inner wall surface of the sample retention cavity 210 can be set so that both opposite sides are inclined surfaces. The inner wall surface of the sample retention cavity 210 includes two inclined surfaces. One inclined surface is adjacent to the sampling port 201, and the other inclined surface is opposite to the first inclined surface. The distance between the first and second inclined surfaces gradually decreases downward, and the sample retention cavity 210 is funnel-shaped. In this way, the left edge of the top inlet 2101 can also be located to the left of the left edge of the bottom outlet 2102.

[0088] Specifically, the distance between the inclined surface 214 and the vertical surface 215 in the sample retention cavity 210 is L1, and L1 gradually decreases along the vertical direction. Here, the vertical direction is... Figure 1 The up and down directions in the middle.

[0089] like Figure 3 As shown, in some embodiments, the sampling block 21 is provided with a second protrusion 212. The second protrusion 212 is located on the side of the sampling block 21 away from the sampling port 201. The bottom surface of the second protrusion 212 is flush with the bottom surface of the sampling block 21. The surface of the second protrusion 212 away from the sampling port 201 is an inclined pushing surface 2121, and the distance between the pushing surface 2121 and the sampling port 201 gradually increases downwards. By providing the second protrusion 212, when a sample 3f accidentally falls into the sampling tube 20 and is located between the sampling block 21 and the sampling port 202, during the sliding process of the sampling block 21 towards the first position 2a, the pushing surface 2121 on the second protrusion 212 can lift the sample 3f and push it towards the sampling port 202. Therefore, the setting of the push surface 2121 of the second protrusion 212 makes the sample 3f in the sampling tube 20 push out more smoothly, reducing the possibility of the sample 3f getting stuck between the sampling block 21 and the sampling tube 20.

[0090] like Figure 3 As shown, in some embodiments, the driving sampling device 22 is a cylinder 221, which is connected to the end of the sampling tube 20 away from the sampling port 201. The cylinder rod 223 of the cylinder 221 is connected to the sampling block 21. By using the cylinder 221 to drive the sampling tube 20, the cylinder 221 generates power by compressing gas. The cylinder 221 has a fast response speed, high reliability, and relatively low cost.

[0091] like Figure 3 As shown, optionally, the cylinder rod 223 is connected to the sampling block 21 via a floating joint 222. By using the floating joint 222 to connect the cylinder 221 and the sampling block 21, the floating joint 222 can absorb the deviation between the sampling tube 20 and the cylinder 221, thereby making the movement of the sampling block 21 in the sampling tube 20 smoother. The floating joint 222 can adopt the structure of a floating joint known in the prior art, so this structure will not be described in detail.

[0092] Specifically, such as Figure 3 As shown, the floating connector 222 is located inside the sampling tube 20. The floating connector 222 is connected to the side of the sampling block 21 away from the sampling port 201. The end of the cylinder rod 223 is connected to the floating connector 222, so that the floating connector 222 can be protected by the sampling tube 20.

[0093] like Figure 8 As shown, the sampling block 21 has a sampling block connection hole 213 penetrating the side wall. The floating connector 222 can be inserted into the sampling block connection hole 213 through the connecting post to achieve the connection between the floating connector 222 and the sampling block 21. The side of the floating connector 222 opposite to the sampling block 21 forms a rod connection hole, and the end of the cylinder rod 223 fits into this rod connection hole.

[0094] like Figure 3 As shown, for example, a sampling port 201 is opened at the first end of the sampling tube 20 in the first direction D1, and the sampling port 201 is open towards the first direction D1. The sampling tube 20 extends along the first direction D1. The first end of the sampling tube 20 can be connected to the chute 101 through a first connecting structure. The chute 101 can be arranged vertically, and the material 3e in the chute 101 can fall vertically by its own weight. The first direction D1 is perpendicular to the vertical direction, so the sampling port 201 is perpendicular to the direction of flow of the material 3e in the chute 101. A sampling block 21 is disposed in the sampling tube 20. A cylinder 221 is connected to the sampling block 21 through a floating joint 222 and can drive the sampling block 21 to move along the first direction D1 in the sampling tube 20. Under the drive of the cylinder 221, the sampling block 21 can reach the first position 2a, the second position 2b, and the third position 2c. Since the sampling block 21 moves along the first direction D1 and the sampling port 201 is open towards the first direction D1, the mutual interference between the material 3e in the sampling tube 20 and the chute 101 can be reduced, and the influence of the sampling device 2 on the flow of the material 3e in the chute 101 can be reduced.

[0095] For example, when the sampling block 21 is in the first position 2a and the second position 2b, the sampling block 21 is located inside the sampling tube 20 and does not interfere with the material 3e in the chute 101. The sampling outlet 202 and the sampling port 201 in the sampling tube 20 are spaced apart along the first direction D1, and the sampling outlet 202 is located on the side of the sampling tube 20 away from the chute 101. The sampling tube 20 is connected to the chute 101, and the sampling port 201 is connected to the chute 101.

[0096] For example, driven by cylinder 221, sampling block 21 reaches the third position 2c, and sampling block 21 extends into chute 101. Material 3e can fall into sample retention chamber 210 through top inlet 2101. After sampling block 21 stays for a period of time, material 3e fills sample retention chamber 210 and becomes sample 3f to be tested, and excess material 3e overflows. Sampling block 21 reaches the second position 2b driven by cylinder 221, and excess material 3e is scraped off. Through the first protrusion 211 and leakage channel 2110, the probability of material 3e getting stuck between sampling tube 20 and sampling block 21 is reduced. Finally, what is left is the sample 3f in sample retention chamber 210 inside sampling block 21, thereby achieving quantitative measurement.

[0097] For example, the first connection structure can be a clamp or a bolt. The sampling tube 20 and the chute 101 can be connected by a clamp. Alternatively, the sampling tube 20 and the chute 101 can be fixed by screws or bolts, or they can be connected by welding.

[0098] For example, when excess material 3e remains in the sampling tube 20, the second protrusion 212 pushes the excess material 3e out of the sampling port 202, preventing the sampling block 21 at the second protrusion 212 from getting stuck between the sampling tube 20 and the sampling block 21.

[0099] This means that the protrusions at both ends of the sampling block 21 in the first direction D1 can reduce the probability of the sampling block 21 getting stuck. This makes the sliding of the sampling block 21 in the first direction D1 smoother, the sampling process more stable, reduces rice jamming and broken rice, and reduces the impact on the overall broken rice rate analysis.

[0100] The processing system 100 according to an embodiment of the present invention includes a sampling device 2 and a processing device 1 according to an embodiment of the present invention. The processing device 1 is at least one of a color sorter, a rice huller, a polisher, a rice milling machine, and a white rice grading sieve. When the processing device 1 is any multiple of the color sorter, rice huller, polisher, rice milling machine, and white rice grading sieve, the multiple devices can be connected in series.

[0101] The sampling device 2 is connected to the discharge component (such as the discharge chute 101) of the at least one processing device 1 and is used to sample the discharge of the at least one processing device 1.

[0102] According to the processing system 100 of the present invention, by using the sampling device 2 described above, sample 3f can be quantitatively collected, and damage to sample 3f and material 3e can be reduced, thereby improving the accuracy of judgment and analysis.

[0103] The sample dispensing apparatus 3 disclosed in the present invention is described below with reference to the accompanying drawings.

[0104] Understandably, in the existing technical solution, the extracted sample 3f is directly analyzed. The analysis of sample 3f involves a large number of particles and takes a long time, which will reduce the operating efficiency of the processing system.

[0105] To address the aforementioned problems, this application proposes a sample separation device 3, see reference 3. Figures 10-13 The sample dispensing device 3 includes: a housing 31 and at least one dispensing structure 33.

[0106] The top of the housing 31 is provided with a feed inlet 311, and the bottom of the housing 31 is provided with an overflow outlet 312 and a sample dispensing outlet 313. The dispensing structure 33 is located inside the housing 31 and below the feed inlet 311.

[0107] Each material distribution structure 33 includes a first material plate 331 and a second material plate 332. The first material plate 331 and the second material plate 332 are connected to form a connecting line Q1Q2. The height of the first material plate 331 and the second material plate 332 gradually decreases in the direction towards the connecting line Q1Q2. That is, the first material plate 331 and the second material plate 332 of the same material distribution structure 33 are generally V-shaped. The first material plate 331 can be a flat plate, a curved plate, or a multi-segment plate with different shapes in different sections; there is no limitation here. The second material plate 332 can be a flat plate, a curved plate, or a multi-segment plate with different shapes in different sections; there is no limitation here.

[0108] The first material plate 331 is provided with a first material outlet 3301, and the second material plate 332 is provided with a second material outlet 3302.

[0109] At least one of the first material plate 331 and the second material outlet 3302 in each material distribution structure 33 is used to catch the material scattered above. In each material distribution structure 33, the second material outlet 3302 leads to the overflow outlet 312, and the first material outlet 3301 leads to the sample outlet 313 or is set towards the material distribution structure 33 below.

[0110] There can be one or more material distribution structures 33. When there is more than one material distribution structure 33, they are arranged sequentially along the height direction. Regardless of whether there is one or more material distribution structures 33, the uppermost material distribution structure 33 is located below the feed inlet 311 (or the material distribution plate 32 mentioned below). Since the height of the first material plate 331 and the second material plate 332 gradually decreases in the direction towards the connecting line Q1Q2, the sample 3f can roll downwards on the first material plate 331 or the second material plate 332 under the action of gravity, and thus roll to the first material distribution port 3301 and the second material distribution port 3302 for distribution. The material 3e will be distributed to the sample 3f in a certain proportion by the first material distribution port 3301 and the second material distribution port 3302 along the connecting line Q1Q2.

[0111] As material 3e enters the feed inlet 311 and falls downwards, it lands on the distribution structure 33 below. Upon impacting the first or second material plate 331 of the distribution structure 33, material 3e bounces. Due to collisions between the material 3e particles, the bounce direction is no longer straight up and down. The collision locations are random, and therefore the bounce direction is also random, allowing the material 3e particles to mix. After falling, material 3e is then distributed according to the position and size of the first and second distribution inlets 3301 and 3302.

[0112] When there is no other material distribution structure 33 below the material distribution structure 33, the second material distribution port 3302 of the material distribution structure 33 leads to the overflow port 312, and the first material distribution port 3301 leads to the sample distribution port 313. The sample 3f leading to the sample distribution port 313 is analyzed, and the destination of the sample 3f leading to the overflow port 312 is not limited. For example, it can be returned to the place where the sample 3f came from or go to the next process of the sample 3f.

[0113] When there is another material distribution structure 33 below the current material distribution structure 33, the second material distribution port 3302 of the current material distribution structure 33 leads to the overflow port 312, and the first material distribution port 3301 leads to the material distribution structure 33 below, where the first material plate 331 receives the material. Thus, the next material distribution structure 33 completes the second sample 3f distribution. The second sample 3f distribution process is the same as the first sample 3f distribution process, and will not be described again here. During each distribution process, some samples 3f will flow to the overflow port 312, reducing the number of samples 3f flowing to the next material distribution structure 33. The destination of the samples 3f flowing to the overflow port 312 is unrestricted; for example, they may return to where they came from or go to the next process step.

[0114] The bottommost dispensing structure 33, after undergoing the sample dispensing process, has its second dispensing port 3302 leading to the overflow port 312, and its first dispensing port 3301 leading to the sample dispensing port 313. The sample 3f delivered to the sample dispensing port 313 is then analyzed. Therefore, the more dispensing structures 33 there are, the more times the sample is dispensed, and the smaller the proportion of sample 3f ultimately reaches the sample dispensing port 313, thus reducing the number of particles in the analyzed sample 3f and reducing the analysis time.

[0115] Furthermore, when multiple dispensing structures 33 are set up, multiple mixing and dispensing can be performed, ultimately obtaining a uniformly mixed material sample 3f with a specific proportion at the sample dispensing port 313. This not only results in a smaller number of particles in the final sample 3f, but also, due to the uniform sampling, allows for more accurate analytical results. Therefore, the sample dispensing device 3 helps improve analytical efficiency and the overall operating efficiency of the system.

[0116] Typically, multiple samplings are required during sampling analysis. When using the sampling device 3 of this application, the samples 3f collected multiple times can be placed into the inlet 311 of the sampling device 3 simultaneously, or they can be placed into the inlet 311 multiple times. In some designs, the inlet 311 on the sampling device 3 can be one or multiple.

[0117] The feed inlet 311 is positioned relatively high on the housing 31, thus elevating the initial position of the sample 3f and providing greater downward rolling force. The feed inlet 311 can be located on the top wall or the top side wall of the housing 31, without limitation. The overflow outlet 312 is positioned relatively low on the housing 31, allowing the sample 3f to eventually roll into it under gravity. The overflow outlet 312 can be located on the bottom wall or the bottom side wall of the housing 31, without limitation. Similarly, the sample dispensing outlet 313 is positioned relatively low on the housing 31, allowing the sample 3f to eventually roll into it under gravity. The sample dispensing outlet 313 can be located on the bottom wall or the bottom side wall of the housing 31, without limitation. Optionally, both the overflow outlet 312 and the sample dispensing outlet 313 can be located on the bottom wall of the housing 31, thus eliminating the need for an excessively large bottom dimension of the housing 31.

[0118] In some embodiments, the sampling device 3 further includes a material distribution plate 32, which is located inside the housing 31 and below the feed inlet 311. The material distribution plate 32 is located above at least one material distribution structure 33. The material distribution plate 32 is used to catch and distribute the material falling from the feed inlet 311. The height of the material distribution plate 32 gradually decreases from one end to the other. The material distribution plate 32 distributes the material to the material distribution structure 33 below it. The material distribution plate 32 can distribute the material 3e onto the first material plate 331 below, or onto the second material plate 332, which is not limited here.

[0119] In other words, the extracted material 3e enters the housing 31 from the top feed port 311, and falls onto the material distribution plate 32 under the action of gravity. Since the material distribution plate 32 gradually decreases in height from one end to the other, the material 3e can roll down on the material distribution plate 32 under the action of gravity, guiding the material 3e to the material distribution structure 33 below.

[0120] Understandably, after material 3e falls downwards from the feed inlet 311, it will land on the lower distribution plate 32. Upon hitting the distribution plate 32, material 3e will bounce. After bouncing, the particles of material 3e will collide with each other, and since the collision locations are random, the bounce direction is also random, thus allowing the material 3e particles to mix together. In other words, the distribution plate 32 helps improve the mixing uniformity of material 3e.

[0121] In this application, as Figure 12 and Figure 13 As shown, the loose material plate 32 can be a flat plate, and the loose material plate 32 is inclined relative to the horizontal plane, with the included angle between the two on the receiving side being an acute angle. This application does not exclude the possibility that some solutions may have a curved plate or a multi-segment plate with different inclination angles for different segments, which is not limited here.

[0122] In some embodiments, multiple feed inlets 311 are provided and are spaced apart from each other, with each feed inlet 311 located directly above the material distribution plate 32.

[0123] For example in Figure 13 and Figure 17 In the example shown, the sampling device 3 has multiple inlets 311. When sampling is required at different locations on the processing system 100, the samples 3f taken by the sampling devices 2 at different locations are directed to different inlets 311, enabling analysis at multiple sampling points. Furthermore, connecting multiple sampling devices 2 through multiple inlets 311 simplifies installation.

[0124] In some embodiments, such as Figures 14-16 As shown, in at least one dispensing structure 33 of the sampling device 3, a first material plate 331 is provided with a plurality of first dispensing ports 3301, and a second material plate 332 is provided with a plurality of second dispensing ports 3302. The plurality of first dispensing ports 3301 and the plurality of second dispensing ports 3302 are alternately arranged along the connecting line Q1Q2. In this way, the sample 3f is sampled alternately along the direction of the connecting line Q1Q2, which helps to further improve the uniformity of the sampling.

[0125] Specifically, such as Figure 16 As shown, on multiple material distribution structures 33, first material plates 331 are arranged vertically in sequence. Each first material plate 331 is provided with multiple first material dispensing ports 3301. Material 3e on the first material plate 331 of the previous material distribution structure 33 falls onto the first material plate 331 of the next material distribution structure 33 through its first material dispensing port 3301. The connecting lines Q1 and Q2 of two adjacent material distribution structures 33 are parallel, and the multiple first material dispensing ports 3301 on two adjacent first material plates 331 are alternately arranged along the connecting lines Q1 and Q2. This allows material 3e to be distributed downwards through multiple first material plates 331 in a staggered manner, further promoting the uniformity of mixing of material 3e.

[0126] Specifically, on each material distribution structure 33, the first material distribution port 3301 is rectangular, and the lengths and widths of the multiple first material distribution ports 3301 are equal. For example... Figure 14 As shown, the width of the first material distribution port 3301 is the dimension in the direction parallel to the connecting line Q1Q2 on the material distribution structure 33, and the length of the first material distribution port 3301 is the dimension in the direction perpendicular to the connecting line Q1Q2 on the material distribution structure 33.

[0127] Each of the second dispensing ports 3302 is rectangular, and all of the second dispensing ports 3302 have the same length and the same width. For example... Figure 14 As shown, the width of the second material distribution port 3302 is the dimension in the direction parallel to the connecting line Q1Q2 on the material distribution structure 33, and the length of the second material distribution port 3302 is the dimension in the direction perpendicular to the connecting line Q1Q2 on the material distribution structure 33.

[0128] This arrangement of multiple first distribution ports 3301 and multiple second distribution ports 3302 results in more even distribution of sample 3f. This helps prevent sample 3f from piling up when discharged from each distribution port, and ensures that the rolling speed of sample 3f remains relatively consistent. When sample 3f enters the next distribution structure 33 for rolling, it is also easier to distribute the material more evenly on the next distribution structure 33.

[0129] Specifically, the lower edges of all first dispensing ports 3301 are located on connecting lines Q1Q2, and the lower edges of all second dispensing ports 3302 are located on connecting lines Q1Q2. This helps the sample 3f to leak downward from the dispensing structure 33 and makes it less likely for the sample 3f to remain on the dispensing structure 33.

[0130] In some embodiments, such as Figure 13 and Figure 14 As shown, the first material plate 331 includes a receiving plate area G1 and a discharging plate area G2. The discharging plate area G2 is provided with a first discharging port 3301. The lower edge of the discharging plate area G2 is a connecting line Q1Q2. The receiving plate area G1 is connected to the upper edge of the discharging plate area G2 and is used to collect the sample 3f that falls through the first discharging port 3301. The second material plate 332 is provided with a second discharging port 3302. On the discharging structure 33 of the first material plate 331, the receiving plate area G1, which does not have a discharging port on the first material plate 331, receives the sample 3f that is distributed from above, and the sample 3f rolls along the receiving plate area G1 to the discharging plate area G2.

[0131] It should be noted that the receiving plate area G1 and the discharging plate area G2 on the first material plate 331 can be formed by splicing together at least two plates to form the entire first material plate 331, or they can be composed of a single plate. The upper half of this plate is called the receiving plate area G1, and the lower half is called the discharging plate area G2. There is no dispensing port on the receiving plate area G1. The receiving plate area G1 is used to allow the sample 3f to roll after being received and to spread flat on the first material plate 331. In addition, the position of the first dispensing port 3301 on the discharging plate area G2 and the size ratio of the first dispensing port 3301 on the connecting line Q1Q2 are not limited, as long as the length x1 of the first dispensing port 3301 along the direction of the connecting line Q1Q2 is less than the length x2 of the connecting line Q1Q2. Similarly, the length x3 of the second dispensing port 3302 along the direction of the connecting line Q1Q2 is less than the length x2 of the connecting line Q1Q2.

[0132] Since the material leakage plate area G2 is connected to the material receiving plate area G1, and the material leakage plate area G2 is connected to the connecting line Q1Q2, sample 3f rolls to the material leakage plate area G2, and part of sample 3f rolls to the second material plate 332 under the action of inertia.

[0133] The first material plate 331 is divided into two areas, so that the first material plate 331 provides space for the sample 3f to roll, which is conducive to the sample 3f being mixed evenly during rolling, and keeping it as flat and evenly distributed as possible on the first material plate 331.

[0134] In some embodiments, such as Figure 12 and Figure 13 As shown, there are at least two material distribution structures 33.

[0135] In every two adjacent material distribution structures 33 along the height direction, such as Figure 14 As shown, the lower dispensing structure 33 further includes a third material plate 333, which is connected to the upper edge of the second material plate 332. The third material plate 333 is used to receive the sample 3f falling from the second dispensing port 3302. The third material plate 333 gradually decreases in the direction towards the overflow port 312 to guide the sample 3f to the overflow port 312. The third material plate 333 guides the sample 3f to the overflow port 312, so that the sample 3f is supported by the third material plate 333 when falling, reducing the probability of the sample 3f breaking due to excessive falling height during the process of falling to the overflow port 312, and reducing the damage rate of the sample 3f. In some embodiments, such as Figures 12-14As shown, there are at least two material distribution structures 33. In each pair of adjacent material distribution structures 33 in the height direction, the upper material distribution structure 33 further includes a fourth material plate 334, the upper edge of which is connected to the first material plate 331 or the second material plate 332. The fourth material plate 334 is inclined towards the first material plate 331 of the lower material distribution structure 33 in the downward direction, and the lower edge of the fourth material plate 334 is spaced apart from the lower first material plate 331.

[0136] For example Figure 14 As shown, when sample 3f falls from the first dispensing port 3301 of the upper dispensing structure 33 onto the first material plate 331 of the lower dispensing structure 33, it is guided by the fourth material plate 334 to fall into the receiving plate area G1 of the first material plate 331, instead of falling directly into the leakage plate area G2. This design allows the fourth material plate 334 to act as a stop and guide, enabling sample 3f to reach the desired position within a smaller space. It also allows sample 3f to roll and bounce sufficiently in the receiving plate area G1. This helps ensure that sample 3f is relatively evenly distributed across the first dispensing ports 3301 and second dispensing ports 3302 of the lower dispensing structure 33. "Relatively even" means that a larger dispensing port area results in a larger amount of sample 3f entering, and vice versa.

[0137] By setting the fourth material plate 334, the connecting lines Q1Q2 of at least two material distribution structures 33 can be made parallel and arranged vertically. That is, the connecting lines Q1Q2 of at least two material distribution structures 33 are arranged along the same vertical plane. This will significantly reduce the total horizontal area occupied by two adjacent material distribution structures 33, thereby helping to control the overall area occupied by the sample distribution device 3.

[0138] For example in Figure 12 In the example shown, except for the topmost material distribution structure 33, the connecting lines Q1 and Q2 of the remaining material distribution structures 33 are all located on the same vertical plane. Each first material plate 331 and second material plate 332 is inclined and extended in the left and right direction. By setting the fourth material plate 334, the connecting lines Q1 and Q2 of the upper and lower material distribution structures 33 are located on the same vertical plane, and the required left and right dimensions of the two material distribution structures 33 can be limited.

[0139] Of course, this application does not exclude the possibility that in some designs, the connecting lines Q1 and Q2 of the various material distribution structures 33 are parallel, but they do not need to be arranged on the same vertical plane. For example, still taking... Figure 12In the example shown, each first material plate 331 and second material plate 332 extends obliquely in the left-right direction. The connecting line Q1Q2 of the lower material distribution structure 33 is located to the left of the connecting line Q1Q2 of the upper material distribution structure 33. With this setting, the design of the material distribution structure 33 is more flexible. At this time, the material distribution structure 33 can choose to set a fourth material plate 334 or it can cancel the fourth material plate 334.

[0140] Optionally, in this application, the connecting lines Q1 and Q2 of each material distribution structure 33 are arranged in parallel. This makes cutting and connecting easier when the plates are connected, as keeping the edges parallel is preferable to allowing the edges to be tilted.

[0141] In some specific embodiments, such as Figures 12-16 As shown, there are at least two material distribution structures 33. Each pair of adjacent material distribution structures 33 satisfies the following conditions: the first material plates 331 of the two material distribution structures 33 are parallel, or the second material plates 332 of the two material distribution structures 33 are parallel, or the first material plates 331 of the two material distribution structures 33 are parallel and the second material plates 332 of the two material distribution structures 33 are parallel.

[0142] For example in Figure 12 and Figure 13 In this embodiment, except for the topmost material distribution structure 33, all the other material distribution structures 33 have parallel first material plates 331 and parallel second material plates 332. This arrangement facilitates assembly and positioning, reduces assembly difficulty, and ensures that the height space left for the sample 3f on the first material plate 331 is consistent.

[0143] In some specific embodiments, there are at least two material distribution structures 33, and each pair of adjacent material distribution structures 33 satisfies the following conditions: the first material plate 331 of the previous material distribution structure 33 is parallel to the second material plate 332 of the next material distribution structure 33, and / or, the second material plate 332 of the previous material distribution structure 33 is parallel to the first material plate 331 of the next material distribution structure 33 (not shown in the figure). That is to say, the first material plate 331 and the second material plate 332 of two adjacent material distribution structures 33 are staggered, but still maintain a certain parallel relationship.

[0144] For example in Figure 12 and Figure 13 In this embodiment, of the two uppermost material distribution structures 33, the first material plate 331 of the lower material distribution structure 33 is located below the second material plate 332 of the upper material distribution structure 33, and the two are parallel, so that the sample 3f distributed on the second material plate 332 of the upper material distribution structure 33 falls onto the first material plate 331 of the lower material distribution structure 33. Moreover, in this scheme, the second material plate 332 of the lower material distribution structure 33 is parallel to the first material plate 331 of the upper material distribution structure 33.

[0145] Specifically, in the material distribution structure 33, the first material plate 331 and the second material plate 332 are vertically connected. This improves the structural strength of the connection, reduces the likelihood of breakage, and lowers the connection difficulty. For example, the first material plate 331 and the second material plate 332 in the material distribution structure 33 can be connected by welding. The connection is set vertically before welding, resulting in a more reliable and stronger welded connection. The vertical connection of the first material plate 331 and the second material plate 332 also facilitates the processing of the material distribution structure 33, makes it easier for the plates to be evenly distributed, and simplifies the layout.

[0146] In some embodiments, such as Figure 16 As shown, the material distribution structure 33 located below and adjacent to the bulk material plate 32 also includes multiple partition plates 335. The partition plates 335 are connected to the second material plate 332, and are spaced apart along the connecting line Q1Q2, perpendicular to the connecting line Q1Q2. The partition plates 335 are designed to facilitate the even distribution of the sample 3f after it has been dispersed from the bulk material plate 32 onto the uppermost second material plate 332, reducing the phenomenon of sample 3f agglomerating on the second material plate 332.

[0147] Specifically, the first material plate 331 is provided with a plurality of first material dispensing ports 3301, which are spaced apart along the connecting lines Q1 and Q2. The second material plate 332 is provided with a plurality of second material dispensing ports 3302, which are alternately arranged along the connecting lines Q1 and Q2.

[0148] A partition plate 335 is connected to the first material plate 331, and a partition plate 335 is provided between each first material outlet 3301 and the second material outlet 3302 adjacent to each first material outlet 3301.

[0149] This can further improve the uniformity of the sample 3f falling from top to bottom on the uppermost distribution structure 33, so that the sample 3f is more evenly distributed in each first distribution port 3301 and each second distribution port 3302.

[0150] Specifically, to improve connection reliability and separation effect, the separator 335 is generally a right-angled triangle, with one right-angled side connecting to the first material plate 331 and the other right-angled side connecting to the second material plate 332. Furthermore, in order to be close to the loose material plate 32 without interfering, the separator 335 forms a concave angle on the hypotenuse of the triangle.

[0151] Optionally, such as Figure 16As shown, on the uppermost material distribution structure 33, the first material plate 331 includes multiple first sub-plates 3310. The multiple first sub-plates 3310 are spaced apart along the connecting line Q1Q2. A first material distribution port 3301 is separated between two adjacent first sub-plates 3310. It can also be understood that the first material distribution port 3301 opened on the first material plate 331 extends from one side of the first material plate 331 to the other side, forming multiple isolated first sub-plates 3310.

[0152] Optionally, such as Figure 16 As shown, on the uppermost material distribution structure 33, the second material plate 332 includes multiple second sub-plates 3320. The multiple second sub-plates 3320 are spaced apart along the connecting line Q2Q2. A second material distribution port 3302 is separated between two adjacent second sub-plates 3320. It can also be understood that the second material distribution port 3302 opened on the second material plate 332 extends from one side of the second material plate 332 to the other side, forming multiple isolated second sub-plates 3320.

[0153] Alternatively, the first sub-plate 3310 and the second dispensing port 3302 are alternately arranged along the connecting line Q1Q2, and the first sub-plate 3310 and the second sub-plate 3320 are alternately arranged along the connecting line Q1Q2.

[0154] Alternatively, each first sub-board 3310 is connected to two partition plates 335 on both sides, and each first sub-board 3310 is connected to two second sub-boards 3320 through two partition plates 335, thereby connecting multiple first sub-boards 3310 and multiple second sub-boards 3320 into a whole.

[0155] In some embodiments, such as Figure 12 and Figure 13 As shown, at least two loose material plates 32 are arranged sequentially along the height direction, and the inclination directions of each pair of adjacent loose material plates 32 relative to the horizontal plane are opposite. Among the at least two loose material plates 32, the lower end of the upper loose material plate 32 is positioned above the lower loose material plate 32 at a distance. The lower end of the lowermost loose material plate 32 is positioned above the first material plate 331 or the second material plate 332 of the adjacent material distribution structure 33 at a distance.

[0156] For example in Figure 12In the example shown, the sample distribution device 3 is equipped with three material distribution plates 32. The uppermost material distribution plate 32 is inclined downwards from right to left, meaning its right end is higher than its left end. The middle material distribution plate 32 is inclined downwards from left to right, meaning its left end is higher than its right end. The lowermost material distribution plate 32 is inclined downwards from right to left, meaning its right end is higher than its left end. The lower ends of the uppermost material distribution plate 32 are spaced above the lowermost material distribution plate 32. The lower ends of the middle material distribution plates 32 are also spaced above the lowermost material distribution plate 32. Thus, the samples 3f on the two uppermost material distribution plates 32 are collected by the lowermost material distribution plate 32.

[0157] The upper two material distribution plates 32 are designed to expand the distribution area of ​​the material distribution plates 32 without occupying too much height space, so that all samples 3f entering from the feed inlet 311 can be collected and distributed by these two material distribution plates 32. The lowermost material distribution plate 32 is designed to catch the samples 3f scattered above, which then fall onto the first material plate 331 of the lower material distribution structure 33, and thus onto the receiving plate area G1 of the first material plate 331.

[0158] In some embodiments, such as Figure 11 As shown, the housing 31 is provided with a viewing window 314, which can be a glass window or the like, and is not limited here. The viewing window 314 is used to facilitate observation of the inside of the housing 31 to observe whether there is any jamming or other issues with the sample 3f.

[0159] The sample distribution device 3 of this application utilizes gravity, in conjunction with the material distribution plate 32 and the material distribution structure 33, to achieve automatic sample distribution of sample 3f. No additional power structure is required, which greatly controls the operating cost of the sample distribution device 3.

[0160] The processing system 100 according to an embodiment of the present invention includes the sampling device 3 described in the above embodiment, and also includes a processing device 1. The processing device 1 can be any one or any multiple of a color sorter, a rice huller, a polisher, a rice milling machine, and a white rice grading sieve. When the processing device 1 is any multiple of a color sorter, a rice huller, a polisher, a rice milling machine, and a white rice grading sieve, the multiple devices can be connected in series.

[0161] After the processing device 1 processes the material 3e, a portion of the material 3e is taken out and entered into the sampling device 3 for sampling. The resulting sample 3f can be sent to the analyzer 5 for analysis.

[0162] By setting up the above-mentioned sampling device 3, it is possible to sample evenly and reduce the number of particles in sample 3f, thereby greatly improving the analysis efficiency of sample 3f.

[0163] In some embodiments, the processing device 1 is a color sorter, and the bottom of the color sorter is connected to a chute 101, which is used to discharge rice.

[0164] Specifically, the processing system 100 uses sampling device 2 to extract a fixed amount of rice as sample 3f from chute 101. Sample 3f enters the dispensing device 3 through another chute 101. The dispensing device 3 distributes a portion of sample 3f to overflow port 312 and discharges it through another chute 101. The dispensing device 3 distributes another portion of sample 3f to dispensing port 313 and guides it to analyzer 5. Analyzer 5 can be a detection device using photoelectric technology, such as a light source and camera. The camera takes a picture of sample 3f entering analyzer 5 to obtain an image, and then analyzes sample 3f based on the image.

[0165] When the analyzer 5 needs to take samples for analysis, it controls the movement of the sampling device 22 to perform quantitative sampling. The sampled rice passes through the chute 101 to the sampling device 4 for uniform sampling. The sampled rice then enters the analyzer 5, while the rice that does not need to be analyzed returns to the elevator through the chute 101 for further processing.

[0166] The advantages of this structure are: a) The sampling port 201 of the sampling device 2 and the top inlet 2101 are not on the same vertical plane. When not sampling, the sampling block 21 is completely retracted in the sampling tube 20, which does not affect the normal flow of the material 3e in the chute 101.

[0167] b) The sampling block 21 on the sampling device 2 is connected to the cylinder 221 by a floating joint 222, which makes the extension and retraction of the sampling block 21 in the sampling tube 20 smoother.

[0168] c) When the sampling block 21 on the sampling device 2 moves in the sampling tube 20, there is a second position 2b. At this time, the upper and lower walls of the sampling tube 20 completely seal the upper and lower openings of the sampling block 21, so that the weight of rice sampled each time is consistent, thus achieving the purpose of quantitative sampling.

[0169] In some embodiments, the sampling device 3 is provided with a dispersing plate 32 and a sampling structure 33. After sampling, the rice enters the sampling device 3 after passing through the chute 101 to the inlet 311. It is dispersed by the dispersing plate 32, causing the material 3e to bounce and mix on the plate, and then roll downwards guided by the plate 32. Three layers of dispersing plates 32 are used to ensure the rice flow undergoes at least three bounces and mixing processes, resulting in more thorough mixing. After being dispersed by the dispersing plates 32, the rice is sampled by the sampling structure 33. A portion of the rice is directly distributed to the overflow outlet 312 via the second sampling port 3302, while another portion is distributed to the next sampling structure 33 via the first sampling port 3301 or directly to the sampling outlet 313. Each time the rice is sampled, the rice flow impacts the first plate 331 of the next sampling structure 33 via the first sampling port 3301, bounces and mixes, and then is sampled again. And so on, until finally only a small portion of the rice passes through the sampling port 313 and enters the analyzer 5 for analysis.

[0170] The advantages of the structural design of the sampling device 3 are: a) The design of multiple feed inlets 311 can meet the analysis of multiple sampling points. The sampling of multiple sampling devices 2 and the sampling of the same sampling device 3 can make the final analysis sample more representative.

[0171] b) Before the materials are sampled, they should be thoroughly mixed and dispersed through three or more layers of material distribution plates 32 before being sampled.

[0172] c) When the material passes through the upper-level material distribution structure 33 to the lower-level material distribution structure 33, it will first hit the first material plate 331, and then continue to be divided into two parts. The material has a turning point, which can save lateral space and make the entire structure design more compact.

[0173] d) The material is first poured into the unbroken part of the first material plate 331, and then flows downward by its own weight and bounce, which is equivalent to mixing the material before each sample is dispensed;

[0174] e) The first material plate 331 of each stage is staggered by a sampling interval, making the sampling more relatively uniform.

[0175] like Figure 1 As shown, the processing system 100 provided by the present invention may include the sampling device 3 in the foregoing embodiments;

[0176] It also includes a sampling device 2, an analyzer 5, and a processing device 1, wherein the processing device 1 is at least one of a color sorter, a rice huller, a polisher, a rice milling machine, and a white rice grading sieve. The sampling device 2 is connected to the at least one device and is used to sample the output of the at least one processing device 1. The sampling device 3 is connected to the sampling device 2 and is used to sample the output of the sampling device 2. The analyzer 5 is connected to the sampling device 3 and is used to analyze the output of the sampling device 3. The sampling device 3 is the same as the sampling device 3 in the previous embodiment, and its features and related functions can be referred to in the foregoing section, which will not be repeated here.

[0177] In the processing system 100 of this application, the sampling device 2 can adopt the structure of a sampling device known in the prior art, or it can adopt the structure of the sampling device 2 described in the above embodiments.

[0178] like Figures 2-9 As shown, the sampling device 2 may include: a sampling tube 20, one end of which is a sampling port 201, and the tube wall 203 of the sampling tube 20 is provided with spaced-apart sample outlets 202; a sampling block 21, which is slidably disposed inside the sampling tube 20, and the sampling block 21 is provided with a sample retention cavity 210, which forms a top inlet 2101 and a bottom outlet 2102 at the top and bottom of the sampling block 21, respectively, and the sampling block 21 has a first position 2a, a second position 2b and a third position 2c inside the sampling tube 20; and a driving member 22, which is connected to the sampling block 21 to drive the sampling block 21 to slide between the first position 2a and the third position 2c.

[0179] In the first position 2a, the sampling block 21 is located inside the sampling tube 20, and the bottom outlet 2102 is connected to the sample outlet 202. In the third position 2c, a portion of the sampling block 21 extends out of the sampling outlet 201, at least a portion of the top inlet 2101 is located outside the sampling tube 20, and the bottom outlet 2102 is located inside the sampling tube 20. The second position 2b is located between the first position 2a and the third position 2c. In the second position 2b, both the top inlet 2101 and the bottom outlet 2102 are sealed by the tube wall 203 of the sampling tube 20. The sampling device 2 is the same as the sampling device 2 in the aforementioned embodiment, and its features and related functions can be referred to in the aforementioned parts, which will not be repeated here.

[0180] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0181] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A sampling device (2), characterized in that, include: A sampling tube (20) is provided with a sampling port (201) at one end and a sampling outlet (202) spaced apart on the tube wall (203) of the sampling tube (20). A sampling block (21) is slidably disposed inside the sampling tube (20). The sampling block (21) is provided with a sample retention cavity (210). The sample retention cavity (210) forms a top inlet (2101) and a bottom outlet (2102) at the top and bottom of the sampling block (21), respectively. The sampling block (21) has a first position (2a), a second position (2b), and a third position (2c) inside the sampling tube (20). A driving member (22) is connected to the sampling block (21) to drive the sampling block (21) to slide between the first position (2a) and the third position (2c); In the first position (2a), the sampling block (21) is located inside the sampling tube (20), and the bottom outlet (2102) is connected to the sample outlet (202); At the third position (2c), a portion of the sampling block (21) extends out of the sampling port (201), at least a portion of the top inlet (2101) is located outside the sampling tube (20), and the bottom outlet (2102) is located inside the sampling tube (20); The second position (2b) is located between the first position (2a) and the third position (2c). In the second position (2b), the top inlet (2101) and the bottom outlet (2102) are both closed by the tube wall (203) of the sampling tube (20).

2. The sampling device (2) according to claim 1, characterized in that, The sampling block (21) is provided with a leakage channel (2110). The leakage channel (2110) is located on the side of the sample retention chamber (210) adjacent to the sampling port (201). The upper end of the leakage channel (2110) is connected to the top inlet (2101), and the lower end of the leakage channel (2110) passes through the sampling block (21).

3. The sampling device (2) according to claim 2, characterized in that, The inner wall of the leakage channel (2110) is lower than the upper surface of the sampling block (21) at the junction with the inner wall of the retention cavity (210).

4. The sampling device (2) according to claim 2, characterized in that, The sampling block (21) has a first protrusion (211) on one side adjacent to the sampling port (201), and the leakage channel (2110) is located on the first protrusion (211).

5. The sampling device (2) according to claim 1, characterized in that, At least part of the sample retention cavity (210) has a cross-sectional area that gradually decreases downwards.

6. The sampling device (2) according to claim 5, characterized in that, The inner wall surface of the sample retention chamber (210) includes: The inclined surface (214) adjacent to the sampling port (201); The vertical surface (215) opposite to the inclined surface (214) has a distance that gradually decreases downwards between the inclined surface (214) and the vertical surface (215).

7. The sampling device (2) according to claim 1, characterized in that, The sampling block (21) has a second protrusion (212) on the side away from the sampling port (201). The bottom surface of the second protrusion (212) is flush with the bottom surface of the sampling block (21). The surface of the second protrusion (212) away from the sampling port (201) is an inclined push surface (2121). The distance between the push surface (2121) and the sampling port (201) gradually increases downward.

8. The sampling device (2) according to any one of claims 1-7, characterized in that, The driving component (22) is a cylinder (221), which is connected to the end of the sampling tube (20) away from the sampling port (201), and the cylinder rod (223) of the cylinder (221) is connected to the sampling block (21).

9. The sampling device (2) according to claim 8, characterized in that, Also includes: A floating connector (222) is located inside the sampling tube (20) and connected to the side of the sampling block (21) away from the sampling port (201). The end of the cylinder rod (223) is connected to the floating connector (222).

10. A processing system, characterized in that, include: The sampling device (2) and the processing equipment (1) according to any one of claims 1-9; The processing equipment (1) is at least one of a color sorter, a rice huller, a polisher, a rice milling machine, and a white rice grading sieve. The sampling device (2) is connected to the discharge component of the at least one processing equipment (1) and is used to sample the discharge of the at least one processing equipment (1).

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